RIGHT,即填充到字符串的右侧;另外两个分别是STR_PAD_LEFT,STR_PAD_BOTH 用途:把字符串填充为指定的长度; >>例子: = "Hello World"; echo str_($str,20,"."); 输出:Hello ... str_repeat(stringrepeat); 用途:重复使用的字符串 >>例子:echo _repeat('a',3); 输出: aaa str_split...
Return information about characters used in a string 返回字符串所用字符的信息 crc32() Calculates the crc32 polynomial of a string 计算一个字符串的 crc32 多项式 crypt() One-way string hashing 单向字符串散列 echo() Output one or more strings 输出一个或多个字符串 explode() Split a string by ...
bin2hex() Converts a string of ASCII characters to hexadecimal values chop() Removes whitespace or other characters from the right end of a string chr() Returns a character from a specified ASCII value chunk_split() Splits a string into a series of smaller parts convert_cyr_string() Convert...
* @param string * @param charlist list of characters to remove from the ends of this string. * @param boolean trim the left? * @param boolean trim the right? * @return String */ function mb_trim($string, $charlist='\\\s', $ltrim=true, $rtrim=true) { $both_ends = $...
pad_string Note: The pad_string may be truncated if the required number of padding characters can't be evenly divided by the pad_string's length. 如果填充字符的长度不能被 pad_string 整除,那么 pad_string 可能会被缩短。 pad_type Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_...
A string is series of characters, where a character is the same as a byte. PHP only supports a 256-character set; it does not offer native Unicode support. PHP string literal Astring literalis the notation for representing a string value within the text of a computer program. In PHP, st...
class StringTokenizer {/** * @var string */private $token;/** * @var string */private $delim;/** * Constructs a string tokenizer for the specified string * @param string $str String to tokenize * @param string $delim The set of delimiters (the characters that separate tokens) * ...
You must use the mb_* functions whenever you operate on a Unicode string. For example, if you use substr() on a UTF-8 string, there’s a good chance the result will include some garbled half-characters. The correct function to use would be the multibyte counterpart, mb_substr()....
You must use the mb_* functions whenever you operate on a Unicode string. For example, if you use substr() on a UTF-8 string, there’s a good chance the result will include some garbled half-characters. The correct function to use would be the multibyte counterpart, mb_substr()....
// Return formatted string. return $out; } else { $errorMessage = oci_error(); print htmlentities($errorMessage['message']).""; } } set_client_info() 函数。set_client_info() 函数在匿名 PL/SQL 块中调用 PL/SQL 过程。 // Strip...